How to add color or false color SEM images?

Nowadays, for publishing manuscripts in high impact factor journals like Science and Nature, Scanning Electron Microscope (SEM) images need to be false colored for enhancing visual illustration. There are several hypothetical ways of adding color to the SEM images.

Among the myriad of solutions, one could either buy expensive software to do the trick or use MATLAB codes.

I coded a matlab script here that you could use.

To use it, simply convert your SEM image file (.jpg/.png/.gif/.tiff) to a text file (.txt) using a program like ImageJ and then use the script to add color your SEM image. You can play with the MATLAB's colormap GUI to add various colors to the SEM image.